body {
    margin: 0;
    padding: 0;
}

.body {
    max-width: 720px;
    width: 100%;
    margin: 0 auto;
    display: flex;
    justify-content: center;
    align-items: center;
}

.header {
    height: 100px;
    width: 100px;
    display: flex;
    justify-content: center;
    align-items: center;
    background: chocolate;
    margin: 0 auto;
}

.header input[type="text"] {
    margin-bottom: -1px;
    border-bottom-right-radius: 0;
    border-bottom-left-radius: 0;
}

.header input[type="password"] {
    margin-bottom: 10px;
    border-top-left-radius: 0;
    border-top-right-radius: 0;
}

.xxx {
    display: flex;
    justify-content: center;
    align-items: center;
}

.wrapper {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-gap: 10px;
    grid-auto-rows: minmax(100px, auto);
    background: #ffc8c8;
}

.one {
    grid-column: 1 / 3;
    grid-row: 1;
    background: red;
}

.two {
    grid-column: 2 / 4;
    grid-row: 1 / 3;
    background: #60606a7a;
}

.three {
    grid-row: 2 / 5;
    grid-column: 1;
    background: yellow;
}

.four {
    grid-column: 3;
    grid-row: 3;
    background: yellowgreen;
}

.five {
    grid-column: 2;
    grid-row: 4;
    background: aqua;
}

.six {
    grid-column: 3;
    grid-row: 4;
    background: darkmagenta;
}